Where: Coahuila, Mexico (28.7° N, 102.5° W: paleocoordinates 30.5° N, 70.9° W)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Eagle Ford Group, Early/Lower Turonian to Early/Lower Turonian (93.5 - 89.3 Ma)
• Presence of the foraminifera Helvetoglobotruncana helvetica (Bolli, 1945) and Whiteinella baltica Douglas and Rankin, 1969 [also reported from the age-equivalent Cuautla Formation in southern Mexico (Aguilera-Franco, 2003)], and of the bivalve Mytiloides (Inoceramus) labiatus (Schlotheim, 1813) in rocks that include crustacean remains, suggest that this assemblage is lower to middle Turonian age.
Environment/lithology: offshore; lithified lime mudstone
Size class: macrofossils
Collection methods: Repository: Museo de Múzquiz, Múzquiz, Coahuila (MUZ), Colección Nacional de Paleontología, Instituto de Geología, UNAM (CPC)
Primary reference: F. J. Vega, T. Nyborg, A. Rojas-Briceno, P. Patarroyo, J. Luque, H. Porras-Muzquiz, and W. Stinnesbeck. 2007. Upper Cretaceous Crustacea from Mexico and Colombia: similar faunas and environments during Turonian times. Revista Mexicana de Ciencias Geologicas 24(3):403-422 [C. Schweitzer/E. Johnson/M. Uhen]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 133857: authorized by Carrie Schweitzer, entered by Evaline Johnson on 30.09.2012
Creative Commons license: CC BY (attribution)
Taxonomic list
Malacostraca | |
Pseudosculdidae indet. Dames 1886 mantis shrimp | |
"Cretacoranina cf. dichrous" = Ferroranina dichrous
"Cretacoranina cf. dichrous" = Ferroranina dichrous Stenzel 1945 crab | |
Cenomanocarcinus vanstraeleni Stenzel 1945 crab | |
Raninidae "indet. 1" de Haan 1833 crab | |
Scyllaridae sp. Latreille 1825 slipper lobster | |
Nephropinae sp. Dana 1852 clawed lobster | |
Gourretia aquilae Rathbun 1935 decapod |